Circuit: Custom one-chip of microprocessor LSI circuit
Display: LCD size : 52 mm x 38 mm LCD with green backlight ( ON/OFF ).
Measurement Range: 30 - 130 dB
Resolution: 0.1 dB
Function: dB (A & C frequency weighting), Time weighting (Fast, Slow ), Peak hold, Data hold Record ( Max., Min. )
Accuracy (23 ± 5 ℃): Characteristics of " A " frequency
Under 94 dB input signal, the accuracy is:
31.5Hz ± 2.0 dB
63 Hz ± 1.5 dB
125 Hz ± 1.5 dB
250 Hz ± 1.4 dB
500 Hz ± 1.4 dB
1 K Hz ± 1.1 dB
2 K Hz ± 1.6 dB
4 K Hz ± 1.6 dB
8 K Hz + 2.1 dB, -3.1 dB
12.5 K Hz + 3.0 dB, -6.0 dB
16 K Hz + 3.5 dB, -17.0 dB
Warranty:
As per brand policy